llvm dev - Dec 2012 - [LLVMdev] reg2mem breaks module

Hello,



I'm trying to apply the reg2mem pass on my bc file, but it somehow adds an
instruction before a landingpad instruction and so I get a broken module error:



                The unwind destination does not have a landingpad instruction!

                  %41 = invoke %class.x* @_ZN10xC2Ev(%class.x* %.reload19)

                          to label %.noexc unwind label %88

                The unwind destination does not have a landingpad instruction!



I tried it on LLVM-3.1 and LLVM-3.2, and the same issue occurs on both.

Is there a known bug with reg2mem?

Maybe I'm doing something wrong?



Thanks!

Alon

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Hi Alon, does your module pass the verifier?
   opt -disable-output -verify pass.bc
If it does, please open a bug report.

Ciao, Duncan.

On 31/12/12 10:47, Shaltiel, Alon wrote:
> Hello,
>
> I'm trying to apply the reg2mem pass on my bc file, but it somehow adds
an
> instruction before a landingpad instruction and so I get a broken module
error:
>
>                  The unwind destination does not have a landingpad
instruction!
>
>                    %41 = invoke %class.x* @_ZN10xC2Ev(%class.x* %.reload19)
>
>                            to label %.noexc unwind label %88
>
>                  The unwind destination does not have a landingpad
instruction!
>
> I tried it on LLVM-3.1 and LLVM-3.2, and the same issue occurs on both.
>
> Is there a known bug with reg2mem?
>
> Maybe I'm doing something wrong?
>
> Thanks!
>
> Alon
>
>
>
--------------------------------------------------------------------------------
>
> This message is confidential and intended only for the addressee. If you
have
> received this message in error, please immediately notify the postmaster at
nds.com
> and delete it from your system as well as any copies. The content of
e-mails as
> well as traffic data may be monitored by NDS for employment and security
purposes.
> To protect the environment please do not print this e-mail unless
necessary.
>
> An NDS Group Limited company. www.nds.com
>
>
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